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UCondacts.pas
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UCondacts.pas
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UNIT UCondacts;
{$MODE OBJFPC}
INTERFACE
USES UConstants;
type TParamType = (none, locno, objno, flagno, sysno, mesno, procno, value, locno_, percent,
vocabularyVerb, vocabularyNoun, vocabularyPrep, vocabularyAdverb, vocabularyAdjective,
skip, string_,mesno2,
window, // 0-7
bitno // 0-15
);
TYPE TCondact = record
NumParams : Byte;
Condact : String;
Type1: TParamType;
Type2: TParamType;
Type3: TParamType;
CanBeJump : Boolean; // If true, its a condition that can be converted into Maluva JUMP
end;
CONST Condacts : ARRAY[0..NUM_CONDACTS+NUM_FAKE_CONDACTS - 1] OF TCondact = (
(NumParams:1;Condact:'AT' ;Type1: locno; Type2: none; Type3: none; CanBeJump: true), // 0
(NumParams:1;Condact:'NOTAT' ;Type1: locno; Type2: none; Type3: none; CanBeJump: true), // 1
(NumParams:1;Condact:'ATGT' ;Type1: locno; Type2: none; Type3: none; CanBeJump: true), // 2
(NumParams:1;Condact:'ATLT' ;Type1: locno; Type2:none; Type3: none; CanBeJump: true), // 3
(NumParams:1;Condact:'PRESENT';Type1: objno; Type2: none; Type3: none; CanBeJump: true), // 4
(NumParams:1;Condact:'ABSENT' ;Type1: objno; Type2: none; Type3: none; CanBeJump: true), // 5
(NumParams:1;Condact:'WORN' ;Type1: objno; Type2: none; Type3: none; CanBeJump: true), // 6
(NumParams:1;Condact:'NOTWORN';Type1: objno; Type2: none; Type3: none; CanBeJump: true), // 7
(NumParams:1;Condact:'CARRIED';Type1: objno; Type2: none; Type3: none; CanBeJump: true), // 8
(NumParams:1;Condact:'NOTCARR';Type1: objno; Type2: none; Type3: none; CanBeJump: true), // 9
(NumParams:1;Condact:'CHANCE' ;Type1: percent; Type2: none; Type3: none; CanBeJump: true), // 10
(NumParams:1;Condact:'ZERO' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: true), // 11
(NumParams:1;Condact:'NOTZERO';Type1: flagno; Type2: none; Type3: none; CanBeJump: true), // 12
(NumParams:2;Condact:'EQ' ;Type1: flagno; Type2: value; Type3: none; CanBeJump: true), // 13
(NumParams:2;Condact:'GT' ;Type1: flagno; Type2: value; Type3: none; CanBeJump: true), // 14
(NumParams:2;Condact:'LT' ;Type1: flagno; Type2: value; Type3: none; CanBeJump: true), // 15
(NumParams:1;Condact:'ADJECT1';Type1: vocabularyAdjective; Type2: none; Type3: none; CanBeJump: true), // 16
(NumParams:1;Condact:'ADVERB' ;Type1: vocabularyAdverb; Type2: none; Type3: none; CanBeJump: true), // 17
(NumParams:2;Condact:'SFX' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 18
(NumParams:1;Condact:'DESC' ;Type1: locno; Type2: none; Type3: none; CanBeJump: false), // 19
(NumParams:0;Condact:'QUIT' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 20
(NumParams:0;Condact:'END' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 21
(NumParams:0;Condact:'DONE' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 22
(NumParams:0;Condact:'OK' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 23
(NumParams:0;Condact:'ANYKEY' ;Type1: none; Type2: none ; Type3: none; CanBeJump: false), // 24
(NumParams:1;Condact:'SAVE' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 25
(NumParams:1;Condact:'LOAD' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 26
(NumParams:1;Condact:'DPRINT' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 27
(NumParams:1;Condact:'DISPLAY';Type1: value; Type2: none; Type3: none; CanBeJump: false), // 28
(NumParams:0;Condact:'CLS' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 29
(NumParams:0;Condact:'DROPALL';Type1: none; Type2: none; Type3: none; CanBeJump: false), // 30
(NumParams:0;Condact:'AUTOG' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 31
(NumParams:0;Condact:'AUTOD' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 32
(NumParams:0;Condact:'AUTOW' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 33
(NumParams:0;Condact:'AUTOR' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 34
(NumParams:1;Condact:'PAUSE' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 35
(NumParams:2;Condact:'SYNONYM';Type1: vocabularyVerb; Type2: vocabularyNoun; Type3: none; CanBeJump: false), // 36
(NumParams:1;Condact:'GOTO' ;Type1: locno; Type2: none; Type3: none; CanBeJump: false), // 37
(NumParams:1;Condact:'MESSAGE';Type1: mesno; Type2: none; Type3: none; CanBeJump: false), // 38
(NumParams:1;Condact:'REMOVE' ;Type1: objno; Type2: none; Type3: none; CanBeJump: false), // 39
(NumParams:1;Condact:'GET' ;Type1: objno; Type2: none; Type3: none; CanBeJump: false), // 40
(NumParams:1;Condact:'DROP' ;Type1: objno; Type2: none; Type3: none; CanBeJump: false), // 41
(NumParams:1;Condact:'WEAR' ;Type1: objno; Type2: none; Type3: none; CanBeJump: false), // 42
(NumParams:1;Condact:'DESTROY';Type1: objno; Type2: none; Type3: none; CanBeJump: false), // 43
(NumParams:1;Condact:'CREATE' ;Type1: objno; Type2: none; Type3: none; CanBeJump: false), // 44
(NumParams:2;Condact:'SWAP' ;Type1: objno; Type2: objno; Type3: none; CanBeJump: false), // 45
(NumParams:2;Condact:'PLACE' ;Type1: objno; Type2: locno_; Type3: none; CanBeJump: false), // 46
(NumParams:1;Condact:'SET' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 47
(NumParams:1;Condact:'CLEAR' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 48
(NumParams:2;Condact:'PLUS' ;Type1: flagno; Type2: value; Type3: none; CanBeJump: false), // 49
(NumParams:2;Condact:'MINUS' ;Type1: flagno; Type2: value; Type3: none; CanBeJump: false), // 50
(NumParams:2;Condact:'LET' ;Type1: flagno; Type2: value; Type3: none; CanBeJump: false), // 51
(NumParams:0;Condact:'NEWLINE';Type1: none; Type2: none; Type3: none; CanBeJump: false), // 52
(NumParams:1;Condact:'PRINT' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 53
(NumParams:1;Condact:'SYSMESS';Type1: sysno; Type2: none; Type3: none; CanBeJump: false), // 54
(NumParams:2;Condact:'ISAT' ;Type1: objno; Type2: locno_; Type3: none; CanBeJump: true), // 55
(NumParams:1;Condact:'SETCO' ;Type1: objno; Type2: none; Type3: none; CanBeJump: false), // 56
(NumParams:0;Condact:'SPACE' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 57
(NumParams:1;Condact:'HASAT' ;Type1: value; Type2: none; Type3: none; CanBeJump: true), // 58
(NumParams:1;Condact:'HASNAT' ;Type1: value; Type2: none; Type3: none; CanBeJump: true), // 59
(NumParams:0;Condact:'LISTOBJ';Type1: none; Type2: none; Type3: none; CanBeJump: false), // 60
(NumParams:2;Condact:'EXTERN' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 61
(NumParams:0;Condact:'RAMSAVE';Type1: none; Type2: none; Type3: none; CanBeJump: false), // 62
(NumParams:1;Condact:'RAMLOAD';Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 63
(NumParams:2;Condact:'BEEP' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 64
(NumParams:1;Condact:'PAPER' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 65
(NumParams:1;Condact:'INK' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 66
(NumParams:1;Condact:'BORDER' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 67
(NumParams:1;Condact:'PREP' ;Type1: vocabularyPrep; Type2: none; Type3: none; CanBeJump: true), // 68
(NumParams:1;Condact:'NOUN2' ;Type1: vocabularyNoun; Type2: none; Type3: none; CanBeJump: true), // 69
(NumParams:1;Condact:'ADJECT2';Type1: vocabularyAdjective; Type2: none; Type3: none; CanBeJump: true), // 70
(NumParams:2;Condact:'ADD' ;Type1: flagno; Type2: flagno; Type3: none; CanBeJump: false), // 71
(NumParams:2;Condact:'SUB' ;Type1: flagno; Type2: flagno; Type3: none; CanBeJump: false), // 72
(NumParams:1;Condact:'PARSE' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 73
(NumParams:1;Condact:'LISTAT' ;Type1: locno_; Type2: none; Type3: none; CanBeJump: false), // 74
(NumParams:1;Condact:'PROCESS';Type1: procno; Type2: none; Type3: none; CanBeJump: false), // 75
(NumParams:2;Condact:'SAME' ;Type1: flagno; Type2: flagno; Type3: none; CanBeJump: true), // 76
(NumParams:1;Condact:'MES' ;Type1: mesno; Type2: none; Type3: none; CanBeJump: false), // 77
(NumParams:1;Condact:'WINDOW' ;Type1: window; Type2: none; Type3: none; CanBeJump: false), // 78
(NumParams:2;Condact:'NOTEQ' ;Type1: flagno; Type2: value; Type3: none; CanBeJump: true), // 79
(NumParams:2;Condact:'NOTSAME';Type1: flagno; Type2: flagno; Type3: none; CanBeJump: true), // 80
(NumParams:1;Condact:'MODE' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 81
(NumParams:2;Condact:'WINAT' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 82
(NumParams:2;Condact:'TIME' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 83
(NumParams:1;Condact:'PICTURE';Type1: value; Type2: none; Type3: none; CanBeJump: false), // 84
(NumParams:1;Condact:'DOALL' ;Type1: locno_; Type2: none; Type3: none; CanBeJump: false), // 85
(NumParams:2;Condact:'MOUSE' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 86
(NumParams:2;Condact:'GFX' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 87
(NumParams:2;Condact:'ISNOTAT';Type1: objno; Type2: locno_; Type3: none; CanBeJump: true), // 88
(NumParams:2;Condact:'WEIGH' ;Type1: objno; Type2: flagno; Type3: none; CanBeJump: false), // 89
(NumParams:2;Condact:'PUTIN' ;Type1: objno; Type2: locno; Type3: none; CanBeJump: false), // 90
(NumParams:2;Condact:'TAKEOUT';Type1: objno; Type2: locno; Type3: none; CanBeJump: false), // 91
(NumParams:0;Condact:'NEWTEXT';Type1: none; Type2: none; Type3: none; CanBeJump: false), // 92
(NumParams:2;Condact:'ABILITY';Type1: value; Type2: value; Type3: none; CanBeJump: false), // 93
(NumParams:1;Condact:'WEIGHT' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 94
(NumParams:1;Condact:'RANDOM' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 95
(NumParams:2;Condact:'INPUT' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 96
(NumParams:0;Condact:'SAVEAT' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 97
(NumParams:0;Condact:'BACKAT' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 98
(NumParams:2;Condact:'PRINTAT';Type1: value; Type2: value; Type3: none; CanBeJump: false), // 99
(NumParams:0;Condact:'WHATO' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 100
(NumParams:2;Condact:'CALL' ;Type1: value; Type2: value; Type3: none; CanBeJump: false), // 101
(NumParams:1;Condact:'PUTO' ;Type1: locno_; Type2: none; Type3: none; CanBeJump: false), // 102 ;: revisart
(NumParams:0;Condact:'NOTDONE';Type1: none; Type2: none; Type3: none; CanBeJump: false), // 103
(NumParams:1;Condact:'AUTOP' ;Type1: locno; Type2: none; Type3: none; CanBeJump: false), // 104
(NumParams:1;Condact:'AUTOT' ;Type1: locno; Type2: none; Type3: none; CanBeJump: false), // 105
(NumParams:1;Condact:'MOVE' ;Type1: flagno; Type2: none; Type3: none; CanBeJump: false), // 106
(NumParams:2;Condact:'WINSIZE';Type1: value; Type2: value; Type3: none; CanBeJump: false), // 107
(NumParams:0;Condact:'REDO' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 108
(NumParams:0;Condact:'CENTRE' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 109
(NumParams:1;Condact:'EXIT' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 110
(NumParams:0;Condact:'INKEY' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 111
(NumParams:2;Condact:'BIGGER' ;Type1: flagno; Type2: flagno; Type3: none; CanBeJump: true), // 112
(NumParams:2;Condact:'SMALLER';Type1: flagno; Type2: flagno; Type3: none; CanBeJump: true), // 113
(NumParams:0;Condact:'ISDONE' ;Type1: none; Type2: none; Type3: none; CanBeJump: true), // 114
(NumParams:0;Condact:'ISNDONE';Type1: none; Type2: none; Type3: none; CanBeJump: true), // 115
(NumParams:1;Condact:'SKIP' ;Type1: skip; Type2: none; Type3: none; CanBeJump: false), // 116
(NumParams:0;Condact:'RESTART';Type1: none; Type2: none; Type3: none; CanBeJump: false), // 117
(NumParams:1;Condact:'TAB' ;Type1: value; Type2: none; Type3: none; CanBeJump: false), // 118
(NumParams:2;Condact:'COPYOF' ;Type1: objno; Type2: flagno; Type3: none; CanBeJump: false), // 119
(NumParams:0;Condact:'dumb' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 120 // In V3, this is PREFIX for prefixed condacts
(NumParams:2;Condact:'COPYOO' ;Type1: objno; Type2: objno; Type3: none; CanBeJump: false), // 121
(NumParams:0;Condact:'dumb' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 122 // In V3, this is SETP2
(NumParams:2;Condact:'COPYFO' ;Type1: flagno; Type2: objno; Type3: none; CanBeJump: false), // 123
(NumParams:0;Condact:'dumb' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 124 // In V3, this is SETP2
(NumParams:2;Condact:'COPYFF' ;Type1: flagno; Type2: flagno; Type3: none; CanBeJump: false), // 125
(NumParams:2;Condact:'COPYBF' ;Type1: flagno; Type2: flagno; Type3: none; CanBeJump: false), // 126
(NumParams:0;Condact:'RESET' ;Type1: none; Type2: none; Type3: none; CanBeJump: false), // 127
// Additional fake condacts
(Numparams:1;Condact:'XMES';Type1: string_; Type2: none; Type3: none; CanBeJump: false), //128
(Numparams:1;Condact:'XMESSAGE';Type1: string_; Type2: none; Type3: none; CanBeJump: false), //129
(Numparams:1;Condact:'XPICTURE';Type1: value; Type2: none; Type3: none; CanBeJump: false), //130
(Numparams:1;Condact:'XSAVE';Type1: value; Type2: none; Type3: none; CanBeJump: false), //131
(Numparams:1;Condact:'XLOAD';Type1: value; Type2: none; Type3: none; CanBeJump: false), //132
(Numparams:1;Condact:'XPART';Type1: value; Type2: none; Type3: none; CanBeJump: false), //133
(Numparams:1;Condact:'XPLAY';Type1: string_; Type2: none; Type3: none; CanBeJump: false), //134
(Numparams:2;Condact:'XBEEP';Type1: value; Type2: value; Type3: none; CanBeJump: false), // 135
(Numparams:1;Condact:'XSPLITSCR';Type1: value; Type2: none; Type3: none; CanBeJump: false), //136
(Numparams:0;Condact:'XUNDONE';Type1: none; Type2: none; Type3: none; CanBeJump: false), //137
(Numparams:0;Condact:'XNEXTCLS';Type1: none; Type2: none; Type3: none; CanBeJump: false), //138
(Numparams:0;Condact:'XNEXTRST';Type1: none; Type2: none; Type3: none; CanBeJump: false), //139
(Numparams:1;Condact:'XSPEED';Type1: value; Type2: none; Type3: none; CanBeJump: false), //140
(Numparams:1;Condact:'PENDINGSKIP';Type1: value;Type2:none; Type3: none; CanBeJump: false), //141 This one is used internally by the compiler only
(Numparams:1;Condact:'XDATA';Type1: string_; Type2: none; Type3: none; CanBeJump: false) //142
);
CONST PrefixCondacts : ARRAY[0..NUM_PREFIX_CONDACTS-1] OF TCondact = (
(Numparams:2;Condact:'BSET';Type1: flagno; Type2: bitno; Type3: none; CanBeJump: false), //0 BSET flagno bitno
(Numparams:2;Condact:'BCLEAR';Type1: flagno; Type2: bitno; Type3: none; CanBeJump: false), //1 BCLEAR flagno bitno
(Numparams:2;Condact:'BTOGGLE';Type1: flagno; Type2: bitno; Type3: none; CanBeJump: false), //2 BTOGGLE flagno bitno
(Numparams:2;Condact:'BZERO';Type1: flagno; Type2: bitno; Type3: none; CanBeJump: false), //3 BZERO flagno bitno
(Numparams:2;Condact:'BNOTZERO';Type1: flagno; Type2: bitno; Type3: none; CanBeJump: false), //4 BNOTZERO flagno bitno
(Numparams:1;Condact:'SELECT';Type1: flagno; Type2: none; Type3: none; CanBeJump: false), //5 SELECT flagno
(Numparams:2;Condact:'OPTION';Type1: value; Type2:string_; Type3: none; CanBeJump: false), //6 OPTION value "option"
(Numparams:0;Condact:'CHOICE';Type1: none; Type2: none; Type3: none; CanBeJump: false), //7 CHOICE
(Numparams:1;Condact:'TOGGLECON';Type1: string_; Type2: none; Type3: none; CanBeJump: false), //8 TOGGLECON verb
(Numparams:1;Condact:'MES2';Type1: mesno2; Type2: none; Type3: none; CanBeJump: false) //9 MES2 mesno, internal condact, not documented nor usable from DSF file
);
(* Returns the condact index in the codacts table, or -1 if not found*)
FUNCTION GetCondact(Condact : String): Integer;
(* Returns number of condacts for a given condact code *)
FUNCTION GetNumParams(Opcode: Longint): Byte;
(* Performs semantic check for parameters *)
FUNCTION SemanticCheck(Opcode: Longint; ParamNum: Byte; ParamValue: Byte;ParamAsString: AnsiString): AnsiString;
IMPLEMENTATION
USES SysUtils, UMessageList, UVocabularyTree;
FUNCTION GetCondact(Condact : String): Integer;
VAR i : integer;
found : boolean;
BEGIN
IF (UpperCase(Condact)=FAKE_DEBUG_CONDACT_TEXT) THEN
BEGIN
Result := FAKE_DEBUG_CONDACT_CODE;
END
ELSE
BEGIN
i := 0;
found := false;
while (i < NUM_CONDACTS+NUM_FAKE_CONDACTS) AND (NOT found) DO
BEGIN
if (AnsiUpperCase(Condact) = AnsiUpperCase(Condacts[i].Condact)) THEN
BEGIN
Result := i;
found := true;
END;
Inc(i);
END;
IF (NOT FOUND) AND (V3CODE) THEN // Search for Prefixed Condacts
BEGIN
i := 0;
while (i < NUM_PREFIX_CONDACTS) AND (NOT found) DO
BEGIN
if (AnsiUpperCase(Condact) = AnsiUpperCase(PrefixCondacts[i].Condact)) THEN
BEGIN
Result := i + 512; // returns the condact id + 512
found := true;
END;
Inc(i);
END;
END;
IF NOT FOUND THEN Result := -1;
END;
END;
FUNCTION GetNumParams(Opcode: Longint): Byte;
BEGIN
IF Opcode = FAKE_DEBUG_CONDACT_CODE THEN Result :=0
ELSE IF (((Opcode AND 512) = 512) AND V3CODE) THEN Result := PrefixCondacts[Opcode - 512].NumParams
ELSE Result := Condacts[Opcode].NumParams;
END;
FUNCTION GetParamType(Opcode:Longint; ParamNum: Byte): TParamType;
BEGIN
IF (((Opcode AND 512) = 512) AND V3CODE) THEN
BEGIN
if (ParamNum = 1) THEN Result := PrefixCondacts[Opcode-512].Type1
ELSE if (ParamNum = 2) THEN Result := PrefixCondacts[Opcode - 512].Type2
ELSE Result := PrefixCondacts[Opcode-512].Type3;
END
ELSE
BEGIN
if (ParamNum = 1) THEN Result := Condacts[Opcode].Type1
ELSE if (ParamNum = 2) THEN Result := Condacts[Opcode].Type2
ELSE Result := Condacts[Opcode].Type3;
END;
END;
FUNCTION SemanticVocabularyCheck(VocType: TVocType; AWord: AnsiString):AnsiString;
VAR AVocabularyTree: TPVocabularyTree;
BEGIN
IF Aword='_' THEN Result := ''
ELSE
BEGIN
if (Length(AWord)>5) THEN AWord := Copy(Aword, 1, 5);
Aword := AnsiUpperCase(AWord);
AVocabularyTree := GetVocabulary(VocabularyTree,AWord,VocType);
IF AVocabularyTree = nil THEN Result:='Word not defined in vocabulary or it has an unexpected word type : ' + AWord
ELSE Result := '';
END;
END;
FUNCTION SemanticCheck(Opcode: Longint; ParamNum: Byte; ParamValue: Byte; ParamAsString: AnsiString): AnsiString;
VAR ExpectedType : TParamType;
BEGIN
ExpectedType := GetParamType(Opcode, ParamNum);
Result := '';
CASE ExpectedType OF
locno: IF ParamValue >= LTXCount THEN Result := 'Location ' + IntToStr(ParamValue) + ' does not exist';
objno: IF ParamValue >= OTXCount THEN Result := 'Object ' + IntToStr(ParamValue) + ' does not exist';
flagno: Result := '';
sysno: IF ParamValue >= STXCount THEN Result := 'System message ' + IntToStr(ParamValue) + ' does not exist';
mesno: IF ParamValue >= MTXCount THEN Result := 'Message ' + IntToStr(ParamValue) + ' does not exist';
mesno2: IF ParamValue >= MTX2Count THEN Result := 'Message ' + IntToStr(ParamValue) + ' does not exist';
procno: Result := ''; // For the time being we don't check procno as there could be forward references
value: Result := '';
locno_: IF (ParamValue >= LTXCount) AND (ParamValue< 252) THEN Result := 'Location ' + IntToStr(ParamValue) + ' does not exist';
percent: IF (ParamValue >= 100) OR (ParamValue=0) THEN Result := 'Invalid percent value, must be in the 1-99 range';
vocabularyVerb : Result := SemanticVocabularyCheck(VOC_VERB, ParamAsString);
vocabularyNoun : Result := SemanticVocabularyCheck(VOC_NOUN, ParamAsString);
vocabularyPrep : Result := SemanticVocabularyCheck(VOC_PREPOSITION, ParamAsString);
vocabularyAdjective : Result := SemanticVocabularyCheck(VOC_ADJECT, ParamAsString);
vocabularyAdverb : Result := SemanticVocabularyCheck(VOC_ADVERB, ParamAsString);
skip: Result := '';
string_ : Result := '';
window : IF ParamValue > 7 THEN Result := 'Invalid window number, must be in the 0-7 range';
ELSE Result := '';
END; //case
END;
END.